#61 Leonard Blavatnik

Raised in Russia, immigrated to U.S. with family at age 21. Worked way through college, founded industrial holding company Access Industries in 1986. Later teamed with Russian school chum Viktor Vekselberg, then Russian billionaire Mikhail Fridman. Trio made fortune setting up TNK-BP, joint partnership between their Tyumen Oil Company and British Petroleum; became Russia's second-largest oil company. Recently bought plastics manufacturer Basell from Shell and BASF for $5.7 billion. Also owns stakes in Siberian-Urals Aluminum (SUAL), power company in Kazakhstan, real estate in Argentina and the U.K. Less lucky in New York: reportedly bid to buy Mary Tyler Moore's Manhattan apartment and was rejected by co-op board.